Shock absorber assembly and shock absorber difference.
There are significant differences between shock absorber assemblies and shock absorbers in terms of structure, difficulty of replacement, price and function.
Structural differences: The shock absorber is a component of the shock absorber assembly, and the shock absorber assembly contains more components, such as spring pad, dust jacket, spring, shock pad, upper spring pad, spring seat, bearing, upper rubber and nuts.
Difficulty of replacement: The independent shock absorber replacement process is more complex, requiring the assistance of professional equipment and technical personnel, and there is a certain risk factor. In contrast, the replacement of the shock absorber assembly is relatively simple, usually only a few screws can be completed.
Price comparison: It is often more expensive to replace individual parts of a shock absorber set individually. Since the shock absorber assembly contains all parts of the shock absorber system, it is more economical than replacing all parts of the shock absorber separately.
Functional difference: A single shock absorber mainly plays the role of shock absorption, and the shock absorber assembly also plays the role of suspension pillar in the suspension system. The main function of the shock absorber is to suppress the spring rebound vibration and the impact from the road surface. During driving, although the damping spring can filter out most of the road vibration, the spring itself will still carry out reciprocating motion. At this time, the shock absorber will play a role in restricting the spring jumping.
In summary, the shock absorber assembly provides a more comprehensive solution, including more components and more economical replacement costs, while playing a more important role in the overall suspension system.
What are the symptoms of a broken shock absorber?
01 Oil seepage
Oil seepage of shock absorber is an obvious symptom of its damage. The outside surface of the normal shock absorber should be dry and clean. Once oil is found to be leaking, especially in the upper part of the piston rod, this usually means that the hydraulic oil inside the shock absorber is leaking. This leakage is usually caused by wear of the oil seal. A slight oil leak may not immediately affect the use of the vehicle, but as the oil leak intensifies, it will not only affect the comfort of driving, but also may produce an abnormal noise of "Dong Dong dong". Due to the high hydraulic system inside the shock absorber, maintenance is a safety hazard, so once a leak is found, it is usually recommended to replace the shock absorber rather than try to repair it.
02 Shock absorber top seat abnormal sound
The abnormal sound of shock absorber top seat is an obvious symptom of shock absorber failure. When the vehicle is driving on a slightly uneven road surface, especially in the 40-60 yard speed range, the owner may hear a dull "knock, knock, knock" drum beating in the front engine compartment. This sound is not a metal tapping, but a manifestation of pressure relief inside the shock absorber, even if there are no obvious signs of oil leakage outside. With the increase of use time, this abnormal noise will gradually increase. In addition, if the shock absorber sounds abnormally on a bumpy road, it also means that the shock absorber may be damaged.
03 Steering wheel vibration
Steering wheel vibration is an obvious symptom of shock absorber damage. The shock absorber contains components such as piston seals and valves. When these parts wear, fluid may flow out of the valve or seal, resulting in unsteady fluid flow. This unstable flow is further transmitted to the steering wheel, causing it to vibrate. This vibration becomes more pronounced especially when passing through potholes, rocky terrain or bumpy roads. Therefore, the strong vibration of the steering wheel may be an alarm warning of oil leakage or wear of the shock absorber.
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